Mentone, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.9 °C (low) to 20.6 °C (high). Annual precipitation averages 1505.7 Millimeters. Mentone is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.6 °C | 9.2 °C | 144.53 mm |
| February | -0.3 °C | 11.3 °C | 139.45 mm |
| March | 2.7 °C | 17.1 °C | 143 mm |
| April | 7.3 °C | 20.8 °C | 129.03 mm |
| May | 11.6 °C | 24.8 °C | 119.13 mm |
| June | 15.8 °C | 28.7 °C | 117.09 mm |
| July | 17.6 °C | 30.1 °C | 120.14 mm |
| August | 17.1 °C | 29.9 °C | 91.44 mm |
| September | 13.7 °C | 27.3 °C | 131.57 mm |
| October | 7.6 °C | 21.9 °C | 100.33 mm |
| November | 2.7 °C | 16.2 °C | 120.65 mm |
| December | 0.3 °C | 10.4 °C | 149.35 mm |
| Annual | 7.9 °C | 20.6 °C | 1505.71 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |